V k pump industries provides diaphragm metering pumps. The multiflo hd models comprise of hydraulically actuated diaphragm liquid heads incorporating diaphragm activated replenishing system [dars]. These diaphragm heads are fitted on proven stroke length control mechanism of multiflo series plunger type metering pumps, which have been in use for several years. A stroke length controllable plunger pressurizes and pulses the oil in the hydraulic head. These pulses are transferred to the diaphragm, which creates pumping action. The diaphragm also acts as a perfect seal between the hydraulic oil and the liquid being pumped, creating a hermetically sealed system making the pump safe for toxic/hazardous fluids, economical for costly fluids and ideal for slurries. Salient features: constant hydraulic volume, no overfilling and no manual field adjustments are required; low npsh requirement - lower than conventional pumps; no diaphragm support plates - increases pump capability to handle liquid with slurries and also high viscosity fluids; volumetric air bleeding - purges hydraulic fluid continuously and automatically, thereby ensuring metering accuracy.
